Paper

Paper is a design tool with a shared canvas built on HTML and CSS, so designs are made from the same building blocks as the finished website or app. It runs in the browser or as a desktop app, and whole teams can view and edit files together. The desktop app runs an MCP server that lets coding agents such as Claude Code, Cursor and Codex read and write Paper files. Agents can generate layouts and variations, sync design tokens, styles and components with a codebase, pull in real content from APIs, CMSs and databases, and turn a selected frame into code. Paper also offers image generation and video export. It suits designers and product teams who work alongside AI agents and want design and code to stay in step. The free plan includes unlimited editors and 100 MCP tool calls a week; Pro adds much higher limits per editor, and an Organizations plan adds SSO and admin controls.